16656160145 has 4 divisors (see below), whose sum is σ = 19987392180. Its totient is φ = 13324928112.

The previous prime is 16656160139. The next prime is 16656160187. The reversal of 16656160145 is 54106165661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9756698176 + 6899461969 = 98776^2 + 83063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16656160145 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1665616010 + ... + 1665616019.

It is an arithmetic number, because the mean of its divisors is an integer number (4996848045).

Almost surely, 2^16656160145 is an apocalyptic number.

It is an amenable number.

16656160145 is a deficient number, since it is larger than the sum of its proper divisors (3331232035).

16656160145 is an equidigital number, since it uses as much as digits as its factorization.

16656160145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331232034.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 16656160145 in words is "sixteen billion, six hundred fifty-six million, one hundred sixty thousand, one hundred forty-five".